Method for selecting a reverse bone for an automatic hemline machine and automatic hemline machine

Abstract

The application relates to the sewing technical field, in particular to a reverse bone selection method of an automatic drop machine and the automatic drop machine. The reverse bone selection method of the automatic drop machine comprises the following steps: setting the number and position of bone positions to be processed on the tubular cloth on a controller; sleeving the cloth on two rollers of the automatic drop machine, and adjusting the distance between the two rollers until the cloth reaches a preset tension degree; driving the two rollers to rotate until the cloth rotates one round, and acquiring the number information of the bone positions on the cloth in the process of cloth rotation; judging whether the bone position moving along a preset sewing direction towards a sewing point is the bone position to be processed, and if the bone position is the bone position to be processed, the bone position to be processed is reversed. The reverse bone selection method of the automatic drop machine and the automatic drop machine provided by the application can solve the problem that the existing automatic drop machine cannot realize the selection type reverse bone of multiple bone positions.

Description

Technical Field

[0001] This application relates to the field of sewing technology, and in particular to a method for selecting the bobbin of an automatic hem machine and the automatic hem machine itself. Background Technology

[0002] Given the trend of clothing craftsmanship, the splicing process of clothes has become more and more frequent. Among them, the seam formed by splicing the front and back fabrics of a garment is called the rib of the garment, and the processing of the rib at the hem of the garment determines the final quality of the finished garment to a certain extent.

[0003] In related technologies, for some high-quality garments, it is necessary to reverse the direction of the hemline by tilting the original hemline in the opposite direction. However, currently used automatic hemline machines can only reverse the direction of both hems in a double-hemline hem, and cannot handle selective repositioning of hems with multiple hems, thus failing to reverse the direction of one or more predetermined hems in a multi-hemline hem. Summary of the Invention

[0004] Therefore, it is necessary to provide a method for selecting the vertebrae for an automatic swing-down machine and an automatic swing-down machine in order to solve the problem that existing automatic swing-down machines cannot achieve selective vertebrae selection for multi-vertebrae swing-down.

[0005] This application provides a method for selecting the lower bone of an automatic swing machine, which includes the following steps:

[0006] Set the number and location of the ribs to be processed on the tubular fabric on the controller;

[0007] The fabric is placed on the two rollers of the automatic hem machine, and the distance between the two rollers is adjusted until the fabric reaches the preset tension.

[0008] The two rollers are driven to rotate until the fabric completes one revolution, and during the rotation of the fabric, the number of ribs on the fabric is obtained.

[0009] Determine whether the bone position moving towards the sewing point along the preset sewing direction is the bone position to be processed. If the bone position is the bone position to be processed, perform bone repositioning on the bone position to be processed.

[0010] In one embodiment, when the bone position is the bone position to be processed, the roller drives the bone position to be processed to the deflection point and then stops rotating until the deflection operation of the bone position to be processed is completed.

[0011] In one embodiment, the automatic hem machine includes a needle that sews the fabric at the sewing point; the bobbin selection method of the automatic hem machine further includes: controlling the needle to remain in the lower stop position during the bobbin selection process of the bobbin to be processed.

[0012] In one embodiment, during the rotation of the fabric, the position of the bone is detected by a bone position sensor; wherein, along the preset sewing direction, the bone position sensor is located behind the sewing point, and the inverted bone point is located between the sewing point and the bone position sensor.

[0013] In one embodiment, the automatic heel-down machine includes a broaching pressing drive and a broaching telescopic drive, with an air blowing pipe connected to the output end of the broaching telescopic drive. The step of broaching the broach to be processed includes: controlling the output end of the broaching pressing drive to press down until the output end of the broaching pressing drive presses the fabric; controlling the output end of the broaching telescopic drive to move the air blowing pipe to a preset position, and controlling the air blowing pipe to blow air onto the broach to be processed for a first preset time; controlling the output end of the broaching telescopic drive to move the air blowing pipe back, and controlling the air blowing pipe to blow air onto the broach to be processed for a second preset time; stopping the blowing, and controlling the output end of the broaching pressing drive to retract.

[0014] In one embodiment, the bone position set near the sewing point along the preset sewing direction is defined as the initial bone position. If the initial bone position is the bone position to be processed, after the initial bone position is debossed at the debossing point, the roller drives the initial bone position to move to the sewing point to start sewing; if the initial bone position does not belong to the bone position to be processed, the roller directly drives the initial bone position to move to the sewing point to start sewing.

[0015] In one embodiment, the method for selecting the bob of the automatic hem machine further includes: determining whether the number of bob positions passing through the sewing point reaches the total number of bob positions; when the number of bob positions passing through the sewing point does not reach the total number of bob positions, controlling the roller to continue rotating.

[0016] In one embodiment, when the number of ribs passing through the sewing point reaches the total number of ribs, the starting point of the fabric is controlled to move back to the sewing point and move the overlap line distance relative to the sewing point.

[0017] In one embodiment, in the step of "adjusting the distance between the two rollers until the fabric reaches a preset tension", the distance between the two rollers is adjusted by an expansion motor.

[0018] This application also provides an automatic heel drop machine, which performs the heel drop operation using the heel drop selection method of the automatic heel drop machine described in any of the above embodiments.

[0019] Compared with existing technologies, the automatic hem-down machine and its boning selection method provided in this application solve the boning selection problem by first selecting the number and location of the bones to be processed on the controller. During the sewing process, the automatic hem-down machine can automatically determine whether to perform boning processing on the corresponding bones based on the number of bones passed, effectively solving the boning selection problem. Furthermore, compared with traditional methods, this application eliminates the need to stop the sewing process and manually determine whether a particular bone needs boning, thus greatly improving sewing efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A partial structural schematic diagram of an automatic heel counter according to an embodiment of this application;

[0022] Figure 2 A flowchart of a method for selecting the incision bone in an automatic lowering machine according to an embodiment of this application;

[0023] Figure 3 A flowchart of the reverse bone process provided in this application;

[0024] Figure 4 A schematic diagram of fabric sewing (before the boning) for an embodiment provided in this application;

[0025] Figure 5 A schematic diagram of fabric sewing (after boning) provided for an embodiment of this application;

[0026] Figure 6 This is a schematic diagram illustrating the selection of the bone site to be processed according to an embodiment of this application.

[0027] The symbols in the diagram represent the following meanings:

[0028] 100. Automatic hem lowering machine; 110. Coverstitching machine; 111. Sewing point; 112. Boning point; 120. Roller; 130. Boning position sensor; 140. Boning pressing drive; 150. Boning telescopic drive; 151. Air blowing pipe; 160. Expansion motor; 200. Fabric; 210. Zero boning position; 220. First boning position; 230. Second boning position; 240. Third boning position. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0034] Given the trend of clothing craftsmanship, the splicing process of clothes has become more and more frequent. Among them, the seam formed by splicing the front and back fabrics of a garment is called the rib of the garment, and the processing of the rib at the hem of the garment determines the final quality of the finished garment to a certain extent.

[0035] In related technologies, for some high-quality garments, it is necessary to reverse the direction of the hemline by tilting the original hemline in the opposite direction. However, currently used automatic hemline machines can only reverse the direction of both hems in a double-hemline hem, and cannot handle selective repositioning of hems with multiple hems, thus failing to reverse the direction of one or more predetermined hems in a multi-hemline hem.

[0036] Please see Figures 1-6 To address the problem that existing automatic hem-lowering machines cannot achieve selective boning for multi-position hems, this application provides a boning selection method for an automatic hem-lowering machine 100. The automatic hem-lowering machine 100 includes a cover-sewing machine 110 and two spaced rollers 120. The two rollers 120 are respectively located on both sides of the cover-sewing machine 110 and are driven to rotate by corresponding motors, thereby causing the fabric 200 to rotate.

[0037] like Figure 2 As shown, the method for selecting the inverted bone in the automatic heel drop machine 100 includes the following steps:

[0038] Step S1: Set the number and position of the ribs to be processed on the tubular fabric 200 on the controller;

[0039] Step S2: Place the fabric 200 onto the two rollers 120 of the automatic hem machine 100, and adjust the distance between the two rollers 120 until the fabric 200 reaches the preset tension.

[0040] Step S3: Drive the two rollers 120 to rotate until the fabric 200 rotates one revolution, and during the rotation of the fabric 200, obtain the number of bone positions on the fabric 200.

[0041] Step S4: Determine whether the bone position moving towards the sewing point 111 along the preset sewing direction is the bone position to be processed. If the bone position is the bone position to be processed, perform bone repositioning on the bone position to be processed.

[0042] In step S1, the distance between the two rollers 120 can be adjusted by the expansion motor 160. That is, any one or both of the two rollers 120 can be connected to the expansion motor 160, thereby achieving translation under the drive of the expansion motor 160, so as to tighten the fabric 200 and prevent the fabric 200 from twisting, which would affect the quality of the sewn fabric. A sensor can be used to detect whether the expansion signal of the expansion motor 160 is abnormal. If the expansion signal is normal, it indicates that the expansion is successfully completed and the next step can be performed. If an abnormal expansion signal is detected, it needs to be repaired and the expansion repeated.

[0043] Understandably, this application solves the problem of bone repositioning by first selecting the number and location of the bones to be processed on the controller. During the sewing process, the automatic hem-down machine 100 can automatically determine whether to perform repositioning based on the number of bones passed, effectively resolving the bone repositioning selection issue. Furthermore, compared to traditional methods, this application eliminates the need to stop sewing and manually determine whether a particular bone needs repositioning, thus greatly improving sewing efficiency.

[0044] It should be noted that the preset sewing direction in this embodiment is as follows: Figure 4 and Figure 5 The direction is counterclockwise. Of course, it can also be set to clockwise depending on actual needs.

[0045] It should also be noted that the automatic hem machine 100 also includes a needle (not shown in the figure). The needle is located on the coverstitch machine 110 and is used to sew the fabric 200 at the sewing point 111. That is, the sewing point 111 is the sewing position of the needle on the coverstitch machine 110.

[0046] For ease of explanation, this embodiment defines the bone position set near the sewing point 111 along the preset sewing direction after step S3 as the initial bone position, and the bone position set near the sewing point 111 against the preset sewing direction as the final bone position. Furthermore, with... Figure 4 Taking the fabric 200 shown as an example with four ribs, the four ribs are defined as the zero rib 210, the first rib 220, the second rib 230, and the third rib 240, respectively, from the initial rib to the final rib. Here, the initial orientation of all four ribs is clockwise. During processing, as... Figure 6 As shown, if the controller selects to process the 0th and 2nd ribs on the fabric, since the 0th rib 210 (initial rib) is the first rib to be processed for re-rigging, then the 0th rib 210 corresponds to the 0th rib on the controller. Simultaneously, the 2nd rib 230 corresponds to the 2nd rib on the controller, thus achieving re-rigging processing on the 0th rib 210 and the 2nd rib 230, while the 1st rib 220 and the 3rd rib 240 are not processed. Wherein, as... Figure 5As shown, after the zero bone position 210 and the second bone position 230 are reversed, the direction of the bone position changes from the original clockwise direction to the counterclockwise direction.

[0047] In one embodiment, such as Figure 2 As shown, when the bone position is the bone position to be processed, the roller 120 moves the bone position to the deboning point 112 and then stops rotating until the deboning operation of the bone position to be processed is completed. In this way, the roller 120 can avoid moving the fabric 200 during the deboning process, which would affect the deboning effect.

[0048] Specifically, such as Figure 1 and Figure 3 As shown, the automatic hem lowering machine 100 also includes a boning pressing drive 140 and a boning telescopic drive 150. Both the boning pressing drive 140 and the boning telescopic drive 150 are located on the side of the covertsewing machine 110. An air blowing pipe 151 is connected to the output end of the boning telescopic drive 150. The boning process for the boning position includes: controlling the output end of the boning pressing drive 140 to press down until the output end of the boning pressing drive 140 presses the fabric 200; controlling the output end of the boning telescopic drive 150 to drive the air blowing pipe 151 to a preset position, and controlling the air blowing pipe 151 to blow air into the boning position for a first preset time T1; controlling the output end of the boning telescopic drive 150 to drive the air blowing pipe 151 back, and controlling the air blowing pipe 151 to blow air into the boning position for a second preset time T2; stopping the blowing, and controlling the output end of the boning pressing drive 140 to retract. As is easily understood, once the bone position requiring repositioning is moved to repositioning point 112, the repositioning action begins. The repositioning pressing drive 140 first presses down, holding the fabric 200 in place to prevent it from being blown off-center during the repositioning air blowing, thus reducing garment quality. Then, the repositioning telescopic drive 150 extends, allowing the nozzle of the air blowing pipe 151 to blow air into the dead corner of the side seam fold, causing it to tilt to the other side under air pressure. Then, the repositioning telescopic drive 150 slowly retracts, while the air blowing pipe 151 continues to blow air, relying on air pressure to push the bone position to the other side, thus achieving automatic repositioning.

[0049] Specifically, the reverse pressing drive 140 and the reverse telescopic drive 150 can both be configured as any one of a rotary cylinder, a stepper motor, and a servo motor.

[0050] To facilitate determining the starting point of the needle's stitching on the fabric 200, in one embodiment, the initial bobbining point can be used as the starting point of the stitching at sewing point 111. Thus, after the fabric 200 is stretched and rotated, it is first determined whether the initial bobbining point is the bobbin to be processed. If it is, the initial bobbining point is bobbed at bobbining point 112, and then the roller 120 moves the initial bobbining point to sewing point 111 to begin sewing. If the initial bobbining point is not the bobbin to be processed, the roller 120 directly moves the initial bobbining point to sewing point 111 to begin sewing, simplifying the control of the roller 120's rotation.

[0051] Of course, in other embodiments, other positions between the initial and final ribs on the fabric 200 can also be used as the sewing starting point of the fabric 200, thereby ensuring that the initial ribs can be reliably sewn.

[0052] Furthermore, when processing other bone positions besides the initial bone position, since the sewing machine needle has already started sewing, to ensure the reliability of sewing for other bone positions, in one embodiment, the sewing machine needle can be controlled to remain at the lower stop position during the boning process of the bone positions to be processed. The lower stop position is the lowest point where the needle tip stops after piercing the fabric 200. At this time, the needle is in close contact with the fabric 200, which can fix the position of the fabric 200, prevent displacement, and also reduce the risk of stitch misalignment when restarting.

[0053] During the rotation of the fabric 200, the position of the bone can be detected by the bone position sensor 130 to ensure that the position and number of the bone on the fabric 200 are detected in real time during the sewing process. This allows for precise positioning of the fabric 200 during the sewing process, enabling each bone to be processed to be smoothly re-bonded, thus improving the reliability of the sewing.

[0054] Furthermore, along the preset sewing direction, the bone position sensor 130 is located behind the sewing point 111, and the boning point 112 is located between the sewing point 111 and the bone position sensor 130. That is, when the fabric 200 rotates along the preset sewing direction, the bone positions on the fabric 200 will usually pass through the boning point 112 and the sewing point 111 in sequence. In this way, after the bone position to be processed is boned at the boning point 112, it can be sewn and fixed at the sewing point 111, avoiding the bone position direction from returning to its original position and improving the reliability of the boning.

[0055] Specifically, the distance from the inverted bone point 112 to the bone position sensor 130 can be defined as D1, and the distance from the sewing point 111 to the bone position sensor 130 can be defined as D2, where D1 < D2.

[0056] In one embodiment, such as Figure 2 As shown, the method for selecting the inverted bone in the automatic heel drop machine 100 also includes:

[0057] S5: Determine whether the number of bone positions passing through sewing point 111 has reached the total number of bone positions. If the number of bone positions passing through sewing point 111 has not reached the total number of bone positions, control roller 120 to continue rotating.

[0058] By setting up step S5, it can be ensured that each bone position is sutured.

[0059] Furthermore, when the number of seams passing through sewing point 111 reaches the total number of seams, the starting point of the fabric 200 is moved back to sewing point 111 and the overlap line distance is moved relative to sewing point 111. In this way, there is an overlap between the starting point and the ending point in the sewing trajectory of the fabric 200, thereby effectively improving the sewing strength of the fabric 200.

[0060] This application also provides an automatic heel drop machine 100, which performs heel drop operation using the heel drop selection method of any of the above embodiments.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A method for selecting the inverted bone in an automatic heel drop machine, characterized in that, Includes the following steps: Set the number and position of the ribs to be processed on the tubular fabric (200) on the controller; The fabric (200) is placed on the two rollers (120) of the automatic hem machine, and the distance between the two rollers (120) is adjusted until the fabric (200) reaches the preset tension. The two rollers (120) are driven to rotate until the fabric (200) rotates one revolution, and during the rotation of the fabric (200), the number of bone positions on the fabric (200) is obtained; Determine whether the bone position that moves toward the sewing point (111) along the preset sewing direction is the bone position to be processed. If the bone position is the bone position to be processed, perform bone repositioning on the bone position to be processed. Determine whether the number of bone positions passing through the sewing point (111) reaches the total number of bone positions. If the number of bone positions passing through the sewing point (111) does not reach the total number of bone positions, control the roller (120) to continue rotating. When the number of bone positions passing through the sewing point (111) reaches the total number of bone positions, the starting point of the fabric (200) is controlled to move back to the sewing point (111) and move the overlap distance relative to the sewing point (111).

2. The method for selecting the inverted bone of the automatic heel drop machine according to claim 1, characterized in that, When the bone position is the bone position to be processed, the roller (120) drives the bone position to be processed to the inverted point (112) and then stops rotating until the inverted bone operation of the bone position to be processed is completed.

3. The method for selecting the inverted bone of the automatic lowering machine according to claim 2, characterized in that, The automatic hem machine includes a needle that sews the fabric (200) at the sewing point (111); The method for selecting the inverted bone of the automatic swing machine also includes: During the deboning process of the bone to be processed, the needle is controlled to remain in the lower stop position.

4. The method for selecting the inverted bone of the automatic heel drop machine according to claim 2, characterized in that, During the rotation of the fabric (200), the position of the bone is detected by the bone position sensor (130); Along the preset sewing direction, the bone position sensor (130) is located behind the sewing point (111), and the inverted bone point (112) is located between the sewing point (111) and the bone position sensor (130).

5. The method for selecting the inverted bone of the automatic lowering machine according to claim 2, characterized in that, The automatic lowering machine includes a reverse bone pressing drive (140) and a reverse bone telescopic drive (150), and an air blowing pipe (151) is connected to the output end of the reverse bone telescopic drive (150). The steps for deboning the bone site to be processed include: The output end of the reverse pressing material drive (140) is pressed down until the output end of the reverse pressing material drive (140) presses the fabric (200). The output end of the bone extension drive (150) is controlled to drive the air blowing pipe (151) to move to a preset position, and the air blowing pipe (151) blows air to the bone position to be processed for a first preset time. The output end of the reverse bone telescopic drive (150) is controlled to drive the air blowing pipe (151) to retract, and the air blowing pipe (151) blows air onto the bone position to be processed for a second preset time. Stop blowing air and control the output end of the reverse bone pressing drive (140) to retract.

6. The method for selecting the inverted bone of the automatic lowering machine according to claim 2, characterized in that, The bone position set near the sewing point (111) along the preset sewing direction is defined as the initial bone position. If the initial bone position is the bone position to be processed, after the initial bone position is debonded at the debonding point (112), the roller (120) drives the initial bone position to move to the sewing point (111) to start sewing. If the initial bone position does not belong to the bone position to be processed, the roller (120) directly drives the initial bone position to the sewing point (111) to start sewing.

7. The method for selecting the inverted bone of the automatic heel drop machine according to claim 1, characterized in that, In the step of "adjusting the distance between the two rollers (120) until the fabric (200) reaches the preset tension", the distance between the two rollers (120) is adjusted by the expansion motor (160).

8. An automatic hem-dropping machine, characterized in that, The bone-removing operation is performed using the bone-removing selection method of the automatic lowering machine as described in any one of claims 1-7.

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